Home / 28,588.41-42,921.89-14,557.86

Finding the Fourth Proportional to 28,588.41, 42,921.89 and 14,557.86

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Solution

The fourth proportional to 28,588.41, 42,921.89 and 14,557.86 is: 21,856.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588.41 : 42,921.89 = 14,557.86 : x
  2. Step 2: Convert to fraction form
    28,588.41/42,921.89 = 14,557.86/x
  3. Step 3: Cross multiply
    28,588.41x = 42,921.89 × 14,557.86
  4. Step 4: Simplify right side
    28,588.41x = 624,850,865.56
  5. Step 5: Solve for x
    x = 624,850,865.56/28,588.41
  6. Step 6: Final answer
    x = 21,856.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.